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multithreading, file input, monitoring improvements in EventFilter/Utilities for 71X #2661

Merged
merged 105 commits into from
Mar 20, 2014
Merged

multithreading, file input, monitoring improvements in EventFilter/Utilities for 71X #2661

merged 105 commits into from
Mar 20, 2014

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smorovic
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Changes to DAQ modules and services in CMSSW ("EventFilter/Utilities") used for the file-based system, which include:

  • porting DAQ code to multithreaded APIs (modules and services). Monitoring service is now thread safe and properly supports multiple CMSSW streams and threads.
  • new asynchronous file reading mode (using multiple threads/buffers) in the FedRawDataInputSource
  • file locking is now done with a polling lock instead of a blocking one for decreased NFSv4 locking latency
  • monitoring rework and adjustments to the format of JSON metadata: definition can also be generated by the new implementation, as seen in the reco output module, micro and ministate legend is written in the FU working directory.
  • other misc. fixes and cleanups

Note: fixed compilation error from the previous pull request attempt.

smorovic and others added 30 commits February 21, 2014 12:02
@smorovic
using a polling lock
45691a1
@smorovic
stat for EOR file after checking for data file, if not found
eda8b63 
cleanup of debug log messages
@smorovic
monitoring rework and starting implementation of multithreaded FastMo…
552021a 
…nitoringService
@smorovic
minor changes
3ba5ff9
@smorovic
...
5ed9059
@smorovic
compilaton fixes, FMS: adding multi-stream counting
0cc8f78
@smorovic
more FMS changes
81f9f8e
@smorovic
structuring what is handed over to the FastMonitor
70cb98f
@smorovic
more updates
7fd7e88
@smorovic
update other users of FastMonitor for upcoming changes
d66ef26
@smorovic
converged on changes modules and services
979451e 
several old files removed
@smorovic
removing obsolete object
6f5fc05
@smorovic
more updates
3200f85 
support for ministate
@smorovic
start implementing DataPoint
5b9aaff
@smorovic
progress in updating DataPoint and other pieces
c4353e2
@smorovic
all initially planned features added, now fix compilation
a2d1360
@smorovic
new changes compile
7faad97
@smorovic
startBU.py works in threaded environment
f83119a
@smorovic
adding debug printouts to track problems
f4d9336 
several fixes
@smorovic
fixed crashes, runs but does not yet produce correct result
c328ffe
@smorovic
Working version.
d38dabd 
Includes changes to the StreamerContext (in FWCore/Framework and FWCore/ServiceRegistry)
to include luminosityBlockID for stream callbacks
@smorovic
several bufgixes and removed debug logging
4beb890
@smorovic
revert FWCore changes that were not necessary
a1521c3 
use StreamContext eventID().luminosityBlock() to access lumi ID per stream
@smorovic
fixed crash caused by improper type initialized when number of histo …
4910d41 
…bins is not yet set
@smorovic
removing log
2ffbe59
@smorovic
event counting report from FRD source to FastMonitoringService
2c09ab9 
Path encoding and decoding is now separated per each per-stream
@smorovic
code preparation for microstate measurement per tbb thread id
c8e7095
@smorovic
added eventChunkBlock parameter (should multiply to be exactly eventC…
2d8af14 
…hunkSize, otherwise eventChunkSize will be changed to satisfy this)
@mommsen @smorovic
Use an enum for the return stati and various fixes/improvements.
fd64557
@mommsen @smorovic
A few fixes and cleanup log messages.
b9e434b
@smorovic
cleanup and removal of debug code that is no longer necessary
de3c1e6
@smorovic
switch to MessageLogger for logs
2b6e881
@smorovic
removing obsolete creation of output directory in fake BU
7be5073 
new version of test script
fixed log output throttling for one log message
@smorovic
removing obsolete test scripts
d4f3bd5
@smorovic
modifications to jsd file format, added backup of output.jsd for hltd…
1c8e64f 
… to pick up

added back assertion checks in input source and FMS
reduced sleep time while waiting for next chunk to avoid idling for too long
@smorovic
starting supervisor thread at later point so hltd gets jsd and init f…
80e60ab 
…iles before first input jsons

also a spurious wakeup of condition variable needs to be handled in this case
@smorovic
retry on jsn file not found in ramdisk
1bc8310
@smorovic
Merge branch 'CMSSW_7_1_X' into async-reader-71X
89f6888
@smorovic
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I am reopening this pull request.
The Utilities package has seen bugfixes and several new features added:
-switch to a new file-based DAQ naming convention (adopted also by non-cmssw Event Builder/Filter components)
-fixes and improvements to asynchronous file reading in the input source (all modes now use a "supervisor" thread for file discovery)
-writing last luminsection EoR and EoL file to the working directory, several other file-handling bugfixes, mostly related to hltd daemon changes.
-updated definition of json files, which is now also generated by the module
-a lot of other small improvements, detailed in commit logs

  • investigation of use of synchronization primitives. Lock was added in one place where vector size is modified (preBeginJob in FastMonitoringService). Other issues raised in discussion here were addressed.

The code has been extensively tested over past week in daqval and problems that have been detected were fixed. The submitted version appears to run without problems.

The move to use tbb in FastMonitoringService was considered, however after some discussion we concluded that it requires much effort for no obvious gain (as I also discussed in previous post).

So please consider this version for merge into the official CMSSW_7_1_X branch.

Best regards,
Srecko

@smorovic smorovic reopened this Mar 19, 2014
@cmsbuild
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Pull request #2661 was updated. @Dr15Jones, @emeschi, @cmsbuild, @nclopezo, @mommsen, @Degano, @ktf can you please check and sign again.

@cmsbuild
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+1
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-2661/583/summary.html

@emeschi
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emeschi commented Mar 20, 2014

+1

Sent from my iPhone

On 20 Mar 2014, at 10:17, "cmsbuild" <notifications@github.commailto:notifications@github.com> wrote:

+1
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-2661/583/summary.html

—
Reply to this email directly or view it on GitHubhttps://github.com//pull/2661#issuecomment-38147158.

@Dr15Jones
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+1

@cmsbuild
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This pull request is fully signed and it will be integrated in one of the next CMSSW_7_1_X IBs unless changes (tests are also fine). @nclopezo, @ktf can you please take care of it?

ktf added a commit that referenced this pull request Mar 20, 2014
@ktf
Merge pull request #2661 from smorovic/async-reader-71X
dbee146 
Multithreading -- Multithreading, file input, monitoring improvements in EventFilter/Utilities for 71X
@ktf ktf merged commit dbee146 into cms-sw:CMSSW_7_1_X Mar 20, 2014
@smorovic smorovic deleted the async-reader-71X branch October 7, 2014 08:07
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@smorovic @cmsbuild @mommsen @Dr15Jones @nclopezo @emeschi @ktf @wmtan